With the formation of a cataract, activities  like  reading,  bowling, or driving can be difficult. Fortunately, vision can be restored quickly, allowing the patient to return home within a few hours. With new advances in cataract surgery, vision improvement begins almost immediately, and an eye patch isn't even needed.

So What is a Cataract? A Cataract is the clouding of the lens of the eye. (See above animation) Normally, light passes through the clear lens and is focused onto the Retina. However, the natural aging process can cause the lens to become cloudy. The Cataract or cloudy lens blocks the passage of light through the eye and causes distorted or blurred vision, glare, or difficulty seeing in poor lighting conditions.

Cataract surgery is the most common operation in the world. In the United States, more than 2.7 million procedures are performed annually. (National Institutes of Health)